.register_box {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 380px;
    height: 380px;
    transform: translate(-50%, -50%);
    border-radius: 4px;
    background-color: #fff;
    box-shadow: #999 0 2px 10px;
  }

  .register_box h3 {
    text-align: center;
    color: #333;
    font-size: 24px;
    font-weight: 400;
    margin: 15px auto;
  }

  .input {
    border: 1px solid #ccc;
    padding: 7px 0px;
    padding-left: 0px;
    border-radius: 3px;
    padding-left: 5px;
    -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
    -webkit-transition: border-color ease-in-out 0.15s, -webkit-box-shadow ease-in-out 0.15s;
    -o-transition: border-color ease-in-out 0.15s, box-shadow ease-in-out 0.15s;
    transition: border-color ease-in-out 0.15s, box-shadow ease-in-out 0.15s;
    width: 200px;
  }

  .register_box>div {
    display: flex;
    margin-bottom: 15px;
  }

  .register_box div>div {
    display: inline-block;
    margin: 0 20px;
  }

  #register_avatar {
    width: 250px;
  }

  #register_avatar li {
    width: 46px;
    height: 46px;
    display: inline-block;
  }

  #register_avatar li img {
    width: 44px;
    height: 44px;
    margin:2px;
  }

  .button {
    text-align: center;
  }

  .button #register {
    position: relative;
    display: inline-block;
    width: 200px;
    box-sizing: border-box;
    font-size: 14px;
    text-align: center;
    text-decoration: none;
    color: #ffffff;
    line-height: 2.55555556;
    border-radius: 5px;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    overflow: hidden;
    background-color: #66afe9;
    border: none;
    cursor: pointer;
    margin-top: 5px;
  }

  .button #register_login {
    position: relative;
    display: inline-block;
    box-sizing: border-box;
    font-size: 14px;
    text-align: center;
    text-decoration: none;
    color: #ffffff;
    line-height: 2.55555556;
    border-radius: 5px;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    overflow: hidden;
    border: none;
    cursor: pointer;
    margin-top: 5px;
    width: 50px;
    background-color: #cccccc;
    margin-right: -25px;
  }

  .register_box li.now img {
    border:2px solid #1aad19;
  }